Swivel support for oven burners



Aug.- 25, 19,25. 1,550,837

"N. L. MUELLER SWIVEL SUPPQRT FOR OVEN BURNERS` Filed July '17 1924 2Sheets-sneer 1 Aug. 25, 1925. A i 1,550,837.

w. L. MUELLER swIVELlsUPEoRT FORK OVEN BURNERS "'iled-July 17; i924 I 2h'eets-Shoet 2 fio i" Y "fw ZJ aun/Zc Pineda" Patented Aug. 25, 1925..

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WILLIAM L. MUELLER, OF CHICAGO, ILLINOIS, ASSIGNOR TO WILLIAM F.?ETERSEN, OF CHICAGO, ILLINOIS.

SWIVEL SUPPORT FOR OVEN BURNERS.

Application iled July 17,

To all whom t may concern:

Be it known that I, VVILLTAM L. MUELLER, a citizen of the United States,and a resident of Chicago, in the county of Cook and State of Illinois,have invented certain new and useful Improvements in a Swivel Supportfor Oven Burners, of which the following is a full, clear, and eXactdescription such as will enable others skilled in the art to malte anduse the same.

My invention relates to burners for bakers ovens and has more particularreference to means for supporting a burner at one of its ends, whichstructure is removably mounted in the front wall of the oven.

One of the objects of my invention resides in providing a support towhich the adja cent or forward end of the burner is connected and whichis adapted to be mounted in the front wall of the oven, the constructionand the assembly of the parts being such that the head may be rotatedwithout changing the relation of the parts of the burner and associatedstructures with respect to each other. This will permit the jets of theburner tube (disclosed in my hereinafter referred to co-pendingapplication) to discharge upwardly, or to one side, or downwardly, asdesired. Another object of my invention resides in providing adependable support that will permit of the use of an elongated burnerthat extends to the rear of the oven and is supported solely by the headthereof which is in the housing that is built in the front wall of theoven. Alsoit will be seen that the burner and its associated partsincluding the viewing aperture, etc., are all assembled as a unitarystructure, and may, as such, be readily removed from the oven. Furtherobe jects reside in providing a structure of the character abovedescribed that is novel in the arrangement of its parts, dependable inoperation, comparatively economical to manufacture, and which, wheninstalled, will provide a maximum of efliciency.

I prefer to carry out my invention and to accomplish the numerousobjects thereof in substantially the manner hereinafter fully describedand as more particularly pointed out in the claims, reference being hadto the accompanying drawings that form a portion of this specification.

In the drawings Figure l is a vertical front elevation of 1924. SerialNo. 726,450.

the headto which the burner pipe is secured and in which the head ismounted.

Fig. 2 is a substantially horizontal section taken on line 2 2 of Figure1 and lool;- ing upwardly in the direction of the arrow.

Fig. 3 is a vertical longitudinal sect-ion taken on line 3 3 of Figurel.

Iiig. I is a transverse section taken on line 4 4 of Fig. 3 and lookingin the direction of the arrows.

In the drawings I have employed similar reference characters todesignate the same parts wherever the same occur throughout the severalviews. By referring to the drawings, it will be seen the structurepreferably comprises a housing 5 that is preferably a metal casting ofsubstantially rectangulai;I cross-section, and it is of suliicientlength to extend from the outside to the in side surfaces of the frontwall 6 of the oven in which the same is inserted. Annular retainingflanges 'i' and 8 are formed at the forward and rear ends respectivelyof this casting so as to insure its stability when installed in the ovenwall 6, which latter is usually built around the same during theerection of the oven. Extending inwardly from the forward end of thecasting or housing 5 is a bearing 9 that is formed by a relatively thickweb that is approximately onefourth the depth of the housing` 5 andwhich extends inwardly from the corners of the rectangular castingforming the housing 5 so as to provide a bearing of cylindrical orcircular contour. This bearing has its surn face ground smooth so thatthe head of the burner, when the same is mounted therein, will have asnug fit therein. As seen in Figures 2, 3 and 4C of the drawings therear portion of the housing has a laterally eX- tending flange 10projecting inwardly in the opposite direction to the adjacent retainingflange 8 heretofore mentioned and which eX- tends inwardly from thecorners of the housing to provide a closure at the rear thereof. Iheinner edge of this flange 10 is curved to correspond substantially withthe curvature of the bearing 9 at the for ward end of the housing, andthe purpose thereo-f will hereinafter more fully appear.

The burner is preferably in the form of a pipe 11 that is threaded uponits adjacent forward end and is of any suitable type, preferably thatillustrated in my c0- pending application for an oven burner led evendate herewith Serial No. 726,- 449, but as the details of said burnerform no part of the present invention the same are not illustrated ordescribed herein. The end of the burner pipe 11 is threaded as shown inFigure 2 oi' the drawings, and is screwed into the adjacent end ot' atubular passageway 12 that extends axially through the head. The headpreferably comprises a block or plug 18 of cylindrical cross-section andot' a diameter sullcient to lit the bearing 9 of the housing or casting5, and extending axially from the rear of said block is a tubularextension 1% in which the passageway 12 heretofore mentioned is locatedand to which the burner pipe is connected so that said block aiiords thesole support for said burner. Extending rearwardly from the block 13, ina plane above the horizontal plane of the extension 111, is a tubularextension 15 having a passageway 16 therethrough`r which passagewayextends through the block and the axis of which is parallel with theaxis of the passageway 12 and which is arranged eccentric to the axis ofthe block 13. The tubular extensions 14 and 15 may be separate from eachother, but I have shown them as formed integral, as will be observed byreference to Figures 3 and et of the drawings. A plate or disk 17 ofcircular shape is formed integral with the rear end portions of thetubular extensions la and 15 and the diameter of this disk` as seen inthe drawings, is slightly less than the diameter of the circular openingprovided in the inwardly extending flange 10 at the rear of the housing.By this arrangement a concentric slot 18 is formed around the diskbetween the edge of the same and the adjacent edge of the liange.

The outer end of the passageway 16 leads from the tubular extension 15through the block or plug 13 and is closed by means oi a pivoted plate19 that is provided upon its outer end with a hook 20 to engage with theshank of a pin 21 projecting from the adjacent portion of the block orplug 13. The opposite end portion of the plate 19 is provided with anaperture 22 so that it will surround the gas supply pipe when the latteris screwed into the outer end of the passageway 12 where it extendsthrough the block or plug 13. This will permit the plate to be movedlaterally away from the outer end of the passageway 1G so that the flamefrom the burner may be observed through said passageway, which is, in asense, a peek-hole. Positioned obliquely in suitable apertures a and bmade diagonally through the block 13 and the rear plate 17 of the head,is an obliquely disposed tube 23 having an insulating plug 24 or bushingat its inner end through which the electric conductor, 25 passes, Theopposite or outer end of the tube is exteriorly threaded and a flangedsleeve 26 is screwed thereon to secure the tube in position in the head.Another insulating plug or bushing 27, having a central well or recess28, is screwed into the outer end of the pipe 23, and the conductor 25passes through an aperture in the bottom of the well 28 and is connectedat its outer end to a cap 29. A coiled expansion spring 8O surrounds theconductor within the well and has its opposite ends engaged with thebottom ot the well 28 and the inner face of the cap 29 so as to exertits pressure outwardly against the latter and maintain the conductortaut. Suitable connection may be made with an electric circuit, andwhenever it is desired to light the burner the current control switch,(not shown) is closed and the current passes along the conductor 25through pipe 23 and by means of a suitable ignition `device (not shown)at the end of the conductor the burner is lighted.

By the employment of the structure such as has been hereinbeioredescribed it will be seen that the burner, an element oit' the ignitiondevice, and the peek-hole is mounted in a single head and the parts arealways in the same relation to each other no matter in what position thehead may be rotated within the housing. A clamp plate 31, secured bymeans of a screw 32 to the front of the housing extends over the outu eroverhanging edge or langed portion 33 of the block or plug 13 so thatthe structure may be maintained in its adjusted positions withoutliability of accidental displacement.

The tubular extension 15 with its passageway may be utilized to insert atorch, gas tip or the like in the event it is desired to light theburner whenever the electrical ignition devices are not installed or maybe out of working order. Due to the fact that the bearing 9 and theblock 13 have wide engaging faces and the fit between them is very snugthere is a practically sealed joint between the burner head and thehousing that prevents leakage of steam from the interior of the oven.

lVhat I claim is 1. A burner support for bakers ovens comprising asuitable housing having therein a cylindrical bearing, a burner headmounted in said housing and supported upon said bearing, said burnerhead provided with a cylindrical passageway to the inner end of which aburner pipe is adapted to be secured, and a cylindrical passagewaydisposed eccentric to the first named passageway and having its axisparallel thereto.

2. A burner support for bakers ovens comprising a housing of tubularformation having' a cylindrical bearing adjacent one end, and a burnerhead mounted therein consisting of a cylindrical block of substantiallythe diameter of said bearing and engaged therewith, said block having anaXial and an eccentric bore, and extensions projecting rearwardly fromsaid block, and provided with bores which provide continuations of theaxial and eccentric bores in said block, one of said extensionsproviding means whereby a burner tube is connected to said block.

3. A burner support for bakers ovens comprising a suitable housinghaving therein a cylindrical bearing, a burner head mounted in saidhousing and 'supported upon said bearing, said burner head provided withan extension that is bored and to the inner end of which a burner pipeis adapted to be secured, and an electrical ignition conn ductorextended through said head the innerI end of which terminates adjacentthe burner pipe, the construction and arrangement of the parts beingsuch that said head may be rotated in said bearing without changing therelation of the parts to each other.

4;. A burner support for bakers ovens comprising a housing of tubularformation having a cylindrical bearing adjacent one end, and a burnerhead mounted therein consisting of a cylindrical block of substantiallythe diameter of said bearing and engaged therewith, said block having anaXial and an eccentric bore, and tubes projecting rearwardly from saidblock, the bores of which provide continuations of the axial and eccentric bores in said block, one of said tubes providing means whereby aburner tube is connected to said block, and an element of an electricalignition device extended through said block and terminating adjacent theburner tube, the construction and arrangement of the parts being suchthat said block may be rotated in said bearing without affecting therelation of the parts to each other.

5. A burner support for bakers ovens comprising a suitable housinginserted in the wall of an oven and having a cylindrical bearingtherein, a rotatable block supported in said bearing and having a fuelpassage way therethrough, and a burner communieating with said fuelpassageway, said burner connected tosaid block and solely supportedthereby.

6. A burner support for bakers ovens comprising a suitable housinginserted in the wall of an oven and having a cylindrical bearing at itsforward end, a rotatable block supported in said bearing and having afuel passageway therethrough, a tube proj ecting from said block at thedischarge end of said passageway and adapted to support a burner at itsinner end, and a centrally apertured disk at the inner end of said tubethe periphery of which disk is spaced from the adjacent walls of thehousing to provide a concentric slot between said disk and housing.

A burner support for bakers ovens comprising` a suitable housinginserted in the wall of an oven and having a cylindrical bearing at itsforward end, a removable rotatable block supported in said bearing andprovided with a central fuel passageway and an eccentric channel, meansnormally closing said eccentric channel, an axial tube and an.eccentrically arranged tube integral with said block and communicatingrespectively with said passageway and said channel, a disk integral withthe inner ends of said tubes and having central and eccentric aperturesin registry with the adjacent ends of said tubes, and a burner securedin the central aperture of said disk.

8. A burner support for bakers ovens comprising` a suitable housinginserted in the wall of an oven and having a cylindrical bearing at itsforward end, a removable rotatable block supported in said bearing andprovided with a central fuel passageway and an eccentric channel, meansnormally closing said eccentric channel, an aXial tube and aneccentrically arranged tube integral with said block and communicatingrespectively with said passageway and said channel, a disk integral withthe inner ends of said tubes and having central and eccentric aperturesin registry with the adjacent ends of said tubes, and a burner securedin the central aperture of said disk, the edge of said disk being spacedfrom the adjacent walls of the housing to provide a concentric slotbetween said disk and housing whereby said block may be rotated in itsbearing without affecting the relation of the parts to each other.

Signed at Chicago, county of Cook, and State of Illinois, this fifth dayof J une, 1924:.

WILLIAM L. MUELLER.

